Insulating appliance.



' PATENTED MAY 29, 1906.

No. 821,920v

W. A. BONNBLL. INSULATING APPLIANCE.

APPLICATION FILED APR. 3 1905.

UNITED STATES WILLIAM A. BOQNNELL, or BROOKLYN, NEW YORK.

INSULATING APPLIANCE.

Specification of Letters Patent.

Patented May 29, 1906.

Application filed April 3,1905. Serial No. 253.532.

To all whom, it flea/y concern:

Be it known that I, WILLIAM A. BONNELL, a citizen of the United Statesof America, residing at Brooklyn, in the county of Kings and State ofNew York, have invented certain new and useful Improvements in-Insulating Appliances, of which the following is a speci fication,reference being had therein to the accompanying drawings.

My invention relates to improvements in electrical insulatingappliances, and is particularly adapted for use on gas-pipe outlets andin connection with outlet-boxes. The various inspection departmentsinsist that all gas-pipe outlets shall be covered and insulated, and thematerials heretofore most generally used for this purpose have beenlinen tape and circular loom-tubing. Both of these materials will absorbmoisture. The tape is required to be wound around the gas-pipe outletand the metal part of the insulatingjoint with great care; but this isnot generally done by the workmen, and the circular loomtubing does notcover all of the metal part of the insulating-joint nor the metalflanges of the gas-pipe. It is largely due to the inefliciency of suchinsulation that short circuits occur and fires are started, and myappliances are designed to remedy those defects by sub stituting a hardnon-porous highly-insulating substance of a shape adapted to closely fitover any form of gas-pipe outlet, thereby thoroughly insulating samefrom contact with the electric wires in the outlet-box.

For the purpose of illustration I have shown in the accompanyingdrawings the several pieces comprising my improved insulation and theadaptation of the same to the different forms of gas-pipe outlets asused in connection with the usual forms of outletboXes.

Figure 1 is a vertical section of an outletboX and a single gas-pipeoutlet, showing an application of my insulating-pieces. Fig. 2 is avertical section of an outlet-box and a double gas-pipe outlet, showinganother application of my insulating-pieces. Fig. 3 is a plan view ofFig. 2. Fig. 4 is an end view at an angle of ninety degrees and lookingfrom left to right at Fig. 2. Fig. 5 is a vertical section of athree-branch gas-pipe outlet and outlet-box, showing another applicationof my insulating-pieces. Fig. 6 is a plan view of a five-branch gas-pipeoutlet, showing another application of my insulating-pieces and a meansfor interlocking said pieces together. Fig. 7 is a perspective view of athreebranch gas-pipe outlet, showing the application of my interlockinginsulating-pieces. Fig. 8 is a plan view of Fig. 7. Fig. 9 is an endview at an angle of ninety degrees looking from left to right at Fig. 8,and Fig. 10is aview of Fig. 8.

A is the outlet-box, B the gas-pipe, and C a standard form ofinsulating-joint.

D designates tubular insulating-pieces having graduated coupling ends D,and E is a ring or bushing provided with a recess E,

adapted to receive the end of one of the tubes D. Where it is desired toslightly lengthen the insulation, the ring E may be inserted upside downor additional rings may be added.

F is the insulating junction-piece, which is also provided with agraduated coupling end D, adapted to engage the adjoining end of atubular insulating-piece. For branch outlets the U-shapedinsulating-piece Gr may be employed, and the insulating junction-piece Fmay be cut away to receive same, as shown in Fig. 4. The insulatingjunction-piece may also be extended at the bottom, as shown at H, forthe purpose of covering the gas-pipe flanges I. The insulatingjunction-piece F may be made in sections interlocked by dove tailedends, as shown at F in Figs. 6, 7, 8, and 9, and the U-shapedinsulating-pieces G may be provided with interlocking ridges G,

1 adapted to engage grooves F in the openings in the insulatingunction-pieces F.

, Where found desirable, the U-shap ed insulating member G and theinsulating junction member F may be formed as a single piece, andvarious other modifications may bemade without departing from the spiritof my invention.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1S

1. In combination with insulating appliances, pipe-outlets andoutlet-boxes, said insulating appliances comprising tubular and ringmembers, said ring members provided with an inner recess, and all ofsaid members adapted to pass over and insulate said pipeoutlets.

2. In combination with insulating appliances, pipe-outlets and anoutlet-b0x, some In testimony whereof I afiiX my signature of saidinsulating appliances comprising tubu- 1n presence of two Witnesses. larmembers and other of said insulating appliances comprising U-shapedmembers, any WILLIAM BONNELL of said members adapted to be joined t0-Witnesses:

gether, and all of said members adapted to CHARLOTTE ROSENTHAL,

pass over and insulate said pipe-outlets. THOMAS A. HILL.

